Double Layers Extrusion Coating Machine
Double Layers Extrusion Coating Machine
Double layers extrusion coating machine is a plastic extrusion machinery that helps in producing very slim lining layer made of PP, LDPE. This lining will be then added to various packaging components like woven sacks, giant size bags, aluminium foil, cotton and jute fabric bags etc. This machine is an ideal solution for those looking to manufacture a wide variety of high-quality protective film for products in the packaging industry.
The basic machine equipment includes cooling roller, silicone rubber pressure roller, back-up roll and discharge roller with trimming deflashing device. The entire system is controlled by a PLC to perform automatic film connection, tension control and deviation rectification. The machine is capable of handling the laminations of different thickness and materials including LDPE, PP, EVA, PET, BOPET, and aluminium foil. It is a widely used machine for packaging industry.
In the extrusion coating process a thin film of hot molten polymer is pressed into a substrate passing through a cooled nip roll assembly as shown in Fig. 1.1. The nip force must be precisely controlled to ensure that the coating is applied evenly across the substrate. The coating is usually corona or flame treated on the surface to improve adhesion and reduce oxidation during storage.
During the extrusion coating process, a thermally unstable side of the polymer melt may be exposed to the atmosphere and the subsequent cooling can lead to curling as this surface is cooled faster than the other. Solutions for this problem include adjusting the temperature of the melt or replacing the coating with a lower-density resin to reduce shrinkage at the nip and prevent curling.
A good quality extrusion coating machine will have a high throughput, good speed, and precise nip control to produce the required result. It will also have a well-designed and constructed feed system that will maintain the correct feed position of the paper or film and provide an even distribution of the melt. The nip force must be carefully controlled to avoid causing damage to the machine and to provide an even coating.
The Global Double Layers Extrusion Coating Machine Market report offers a comprehensive analysis of the current market with respect to the various manufacturers and their product portfolios, as well as provides an overview of the latest technological trends and developments. It also covers the price trends and development potential of the Double Layers Extrusion Coating Machine in each region. The report has been compiled using a combination of primary and secondary research. This includes data gathered from manufacturer publications, trade journals, supplier databases and company annual reports. It is a valuable source of information for new entrants as well as existing players in this market. The report will help them to assess the opportunities and develop business strategies accordingly. It is a comprehensive report and should be required reading for all those in the industry. It provides profiles of the key competitors and their respective market shares as well as discusses their latest growth plans and development projects.